Split SetProperty(...attributes, strictmode) into AddProperty(...attributes) and SetProperty(...…

src/arraybuffer.js

 // Copyright 2013 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 "use strict";
 
 var $ArrayBuffer = global.ArrayBuffer;
 
 // -------------------------------------------------------------------
 
@@ skipping 56 matching lines @@
 }
 
 function SetUpArrayBuffer() {
   %CheckIsBootstrapping();
 
   // Set up the ArrayBuffer constructor function.
   %SetCode($ArrayBuffer, ArrayBufferConstructor);
   %FunctionSetPrototype($ArrayBuffer, new $Object());
 
   // Set up the constructor property on the ArrayBuffer prototype object.
-  %SetProperty($ArrayBuffer.prototype, "constructor", $ArrayBuffer, DONT_ENUM);
+  %AddProperty($ArrayBuffer.prototype, "constructor", $ArrayBuffer, DONT_ENUM);
 
   InstallGetter($ArrayBuffer.prototype, "byteLength", ArrayBufferGetByteLen);
 
   InstallFunctions($ArrayBuffer, DONT_ENUM, $Array(
       "isView", ArrayBufferIsViewJS
   ));
 
   InstallFunctions($ArrayBuffer.prototype, DONT_ENUM, $Array(
       "slice", ArrayBufferSlice
   ));
 }
 
 SetUpArrayBuffer();